For f(x)=2x+1 and g(x)=x^2-7 find (g/f) (x)
answers

A. x^2 -7/2x+1
B. 2x+1/x^2-7 = + squared 7 (= has a line through it, and + has line under it)
C. x^2 -7/ 2x+1, x = -1/2 (= sign has line through it)
D. 2x+1/x^2-7

Question

For f(x)=2x+1 and g(x)=x^2-7 find (g/f) (x)
answers

 		A. x^2 -7/2x+1	
 		B. 2x+1/x^2-7 = + squared 7 (= has a line through it, and + has line under it)	
 		C. x^2 -7/ 2x+1, x = -1/2 (= sign has line through it)	
 		D. 2x+1/x^2-7

triciaal · Answer

as before  (g/f)(x) = g(x) divided by f(x)
g(x) = x^2 -7 and f(x) =  2x + 1 
g(x) / f(x)  = (x^2 -7) / (2x + 1)

triciaal · Answer

any questions why it is option  C?

anonymous · Answer

No I think I got how to find it.

michele_laino · Answer

please note that, by definition, is:
$$(g/f)(x)=\frac{ g(x) }{ f(x) }=...$$

anonymous · Answer

ok thanks!! @Michele_Laino

michele_laino · Answer

thanks! @Tallan